The availability of the product for this application tackles a common problem in multi-occupancy dwellings and has been widely welcomed by unvented cylinder manufacturers. It offers major installation advantages for contractors and cost saving benefits for developers.
Where greater in capacity than 15 litres, unvented systems are required to incorporate a temperature and pressure release valve. Hitherto, installation guidance has suggested these valves should discharge to a gully via metallic pipes – typically copper. In some applications, however, this can be both problematic and expensive. This is particularly the case in apartment blocks where there may be no easy access to a suitable external drain.
